I've been thinking a lot about this in the past 24 hours so let's use logic. 30 Teams, 30 #1, 30 #2, 30 #3, 30 #4, 30 #5...it's what you have...a rotation. If you have only 10 Aces, then you have to have pitchers you call #1 but not an Ace...no one thinks that way. Logic part dos: An Ace is a card from a deck of cards. Ace in a deck is a number 1.